package xt;

public class Again {

    public static void main(String[] args) {
    String strOrig = "Hello world ,Hello Runoob";
    int lastIndex = strOrig.lastIndexOf("Runoob");
     if(lastIndex == - 1){
                System.out.println("没有找到字符串 Runoob");
      }else{
        System.out.println("Runoob 字符串最后出现的位置： "+ lastIndex);
    }
  }

}
